Families as Roommates: Changes in U.S. Household Size from 1850 to 2000

Author

Abstract

Living arrangements have changed enormously over the last two centuries. While the average American today lives in a household of only three people, in 1850 household size was twice that figure. Further, both the number of children and the number of adults in a household have fallen dramatically. We develop a simple theory of household size where living with others is beneficial solely because the costs of household public goods can be shared. In other words, we abstract from intra-family relations and focus on households as collections of roommates. The model's mechanism is that rising income leads to a falling expenditure share on household public goods, which endogenously makes household formation less beneficial and privacy more attractive. To assess the magnitude of this mechanism, we first calibrate the model to match the relationship between household size, consumption patterns, and income in the cross-section at the end of the 20th century. We then project the model back to 1850 by changing income. We find that our proposed mechanism can account for 37 percent of the decline in the number of adults in a household between 1850 and 2000, and for 16 percent of the decline in the number of children.

Statistics

Corrections

All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:nbr:nberwo:15477. See general information about how to correct material in RePEc.

For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (). General contact details of provider: http://edirc.repec.org/data/nberrus.html .

If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

If CitEc recognized a reference but did not link an item in RePEc to it, you can help with this form .

If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

Please note that corrections may take a couple of weeks to filter through
the various RePEc services.